Peel
Prunus persicae Tuberocephalus mononis, also known as Peach tumor head lice, belongs to the family Homoptera. Both the South and the South are distributed.
Harmful? Into the nymphs, the back edge of the nymph cluster sucks sap, and it is light green and pink afterwards. In severe cases, the curl of the whole leaf is very tight.
Morphological characteristics adults: winged females have a body length of 1.8 mm, light yellow-brown, and black markings on the back of the abdomen. Dark green, yellow-green, brown and other colors.
Egg: oval black.
If 蚜: similar to a female with a wingless fetus, the body is slightly yellow or light green, and the head and abdomen dark green.
Life history and habits: The Northern People's Republic of China has more than 10 generations, and the type of life cycle is the type of migration. In North China, wintering occurs at the buds of peach, cherry and other branches. In the northern fruit region, locust infestation began in May and occurred from June to July. The females with winged females migrated to wormwood, and in late autumn, they moved back to peaches, cherries and other fruit trees to produce sexual lice. Winter eggs.
Control methods
1. Strengthen the management of orchards: Combine spring pruning, cut off the victim's shoots, and burn them centrally.
2, a reasonable allocation of tree species: In the peach trees or near the orchard, it is not appropriate to grow tobacco, cabbage and other crops, in order to reduce the locust summer breeding sites.
3, protection of natural enemies: ladybugs, flies, grasshoppers, parasitoids, etc., have a strong inhibitory effect on aphids, spraying as little as possible of broad-spectrum pesticides.
4, trunk injection: in the trunk with iron cone from top to bottom, piercing the hole, deep to the xylem, with a No. 8 syringe into dichlorvos.
5. Spraying pesticides: After the eggs hatch in spring, the peaches shall be sprayed in time before flowering and rolling, and reference may be made to the peach meal.
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